Abstract: A method for spreading a spraying liquid onto arable agricultural land by way of several switching elements arranged on an agricultural sprayer and controllable in an open-loop and/or closed-loop manner and in the manner of a pulse width modulation, where the spraying liquid is spread as required onto the arable agricultural land; where a first opening duration associated with a first switching element and at least one further opening duration associated with a further switching element is determined; where spreading the spraying liquid is influenced at least in part by way of the respective opening duration; where at least one upper and/or lower limit opening duration associated with the switching elements is used; and where the first and further determined opening duration is compared with the upper and/or lower limit opening duration.

Abstract: A method for controlling valves of a spraying boom of an agricultural spreading machine, comprising the steps of: generating valve-specific voltage signals for controlling several valves arranged on the spraying boom and providing the valve-specific voltage signals to the a respective valve, wherein the valve-specific voltage signals are pulse width modulated and each have a valve-specific duty cycle, where the valve-specific duty cycles compensate for or reduce influence, which is dependent on the position of the respective valves on the spraying boom, on the valve-specific flow volume of spraying liquid.

Abstract: The invention relates to a method for matching the operation of an individualizing device and the operation of a portioning device of an agricultural dispensing machine to each other in order to achieve a specified local depositing ratio when depositing seeds individualized by the individualizing device and fertilizer portions produced by the portioning device on a usable agricultural area, having the steps of: depositing individualized seeds and produced fertilizer portions onto the usable agricultural area using the agricultural dispensing machine as part of a calibration drive and detecting the depositing positions of the seeds and fertilizer portions deposited during the calibration drive and/or the local depositing relationship thereof using a mobile testing device.

Abstract: A method for actuating a solenoid valve, which is used for throughflow rate control, of an agricultural spreading machine, wherein the solenoid valve has a valve armature, comprising: energizing the solenoid valve in order to cause an opening movement of the valve armature and/or in order to hold the valve armature in an open position in which the solenoid valve is open, interrupting or changing the energization of the solenoid valve in order to cause a closing movement of the valve armature in the direction of a valve seat, and causing a reduction in the movement speed of the valve armature during the closing movement of the valve armature.

Abstract: A method for an open-loop and/or closed-loop control of an agricultural distribution machine, in particular a field sprayer, when spreading liquid distribution material, in which at least one controlled variable, in particular a system pressure and/or a flow rate, is determined and/or predefined for the distribution material, on the basis of which the distribution material is conveyed at least in sections along a liquid circuit formed within the distribution machine, wherein the controlled variable, in particular the system pressure or the flow rate, is adjusted by way of at least one, in particular central, metering and/or actuating element arranged along the liquid circuit.

Abstract: A method for spreading a spraying liquid onto arable agricultural land by way of several switching elements arranged on an agricultural sprayer and controllable in an open-loop and/or closed-loop manner and in the manner of a pulse width modulation, where the spraying liquid is spread as required onto the arable agricultural land; where a first opening duration associated with a first switching element and at least one further opening duration associated with a further switching element is determined; where spreading the spraying liquid is influenced at least in part by way of the respective opening duration; where at least one upper and/or lower limit opening duration associated with the switching elements is used; and where the first and further determined opening duration is compared with the upper and/or lower limit opening duration.

Abstract: A method for spreading a spraying liquid onto arable agricultural land by way of several spreading devices associated with a field sprayer; and arranged along a spraying boom, where the spraying liquid; is applied with a needs-based spreading quantity that is associated with the respective spreading devices where at least one first operating parameter associated with at least one first spreading device; and at least one second operating parameter associated with at least one second spreading device is determined, and where a difference between the operating parameters is ascertained and/or detected, and where the first and/or second operating parameter is adjusted if the difference is outside an acceptance range, where the difference is within the acceptance range after adjustment.

Abstract: A method for actuating a solenoid valve, which is used for throughflow rate control, of an agricultural spreading machine, wherein the solenoid valve has a valve armature, comprising: energizing the solenoid valve in order to cause an opening movement of the valve armature and/or in order to hold the valve armature in an open position in which the solenoid valve is open, interrupting or changing the energization of the solenoid valve in order to cause a closing movement of the valve armature in the direction of a valve seat, and causing a reduction in the movement speed of the valve armature during the closing movement of the valve armature.

Abstract: A method for controlling valves of a spraying boom of an agricultural spreading machine, comprising the steps of: generating valve-specific voltage signals for controlling several valves arranged on the spraying boom and providing the valve-specific voltage signals to the a respective valve, wherein the valve-specific voltage signals are pulse width modulated and each have a valve-specific duty cycle, where the valve-specific duty cycles compensate for or reduce influence, which is dependent on the position of the respective valves on the spraying boom, on the valve-specific flow volume of spraying liquid.

Abstract: The invention relates to a method for matching the operation of an individualizing device (26) and the operation of a portioning device (14) of an agricultural dispensing machine to each other in order to achieve a specified local depositing ratio (?x) when depositing seeds (K) individualized by the individualizing device (26) and fertilizer portions (P) produced by the portioning device (14) on a usable agricultural area (N), having the steps of: depositing individualized seeds (K) and produced fertilizer portions (P) onto the usable agricultural area (N) using the agricultural dispensing machine as part of a calibration drive and detecting the depositing positions (PK, PP) of the seeds (K) and fertilizer portions (P) deposited during the calibration drive and/or the local depositing relationship (?xK) thereof using a mobile testing device (54).

Abstract: An agricultural machine for the combined application of seed and granulate on an agricultural area includes a separating device, a portioning device, and a control device. The separating device has a rotationally drivable separating element for separating seed grains and the portioning device has a rotationally drivable portioning element for producing granulate portions. The control device matches the rotational movements of the separating element and the portioning element to each other to implement a predetermined depositing relationship of the seed grains and the granulate portions on the agricultural area.

Abstract: An agricultural application machine for the combined application of seed and granulate on an agricultural area includes a separating device a portioning device, and a control device. The separating device has a rotationally drivable separating element for separating seed grains and the portioning device has a rotationally drivable portioning element for producing granulating portions. The control device matches the rotational movements of the separating element and the portioning element to each other to implement a predetermined depositing relationship of the seed grains and the granulating portions on the agricultural area.